mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-05-23 18:02:29 -04:00
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
// ------------------------------------------------------------------------------
|
|
// np_rnd.h
|
|
// Functions to generate random numbers with uniform/gaussian probability distributions
|
|
//
|
|
// (c) 2024 - Nico Palermo, IV3NWV - Microtelecom Srl, Italy
|
|
// ------------------------------------------------------------------------------
|
|
//
|
|
// This source is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
// This file is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this source distribution.
|
|
// If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef _np_rnd_h_
|
|
#define _np_rnd_h_
|
|
|
|
#define _CRT_RAND_S
|
|
#include <stdlib.h>
|
|
|
|
#define _USE_MATH_DEFINES
|
|
#include <math.h>
|
|
#define M_2PI (2.0f*(float)M_PI)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// generate a random array of real numbers with a gaussian distribution of given mean and stdev
|
|
void np_normrnd_real(float *dst, int nitems, float mean, float stdev);
|
|
|
|
// generate a random array of nitems complex numbers with a gaussian distribution of given mean and stdev
|
|
void np_normrnd_cpx(float* dst, int nitems, float mean, float stdev);
|
|
|
|
// generate a random array of nitems unsigned int numbers with uniform distribution
|
|
// in the range [0 .. nsetsize)
|
|
void np_unidrnd(unsigned int* dst, int nitems, unsigned int nsetsize);
|
|
|
|
// generate a random array of nitems unsigned chars numbers with uniform distribution
|
|
// in the range [0 .. nsetsize)
|
|
void np_unidrnd_uc(unsigned char* dst, int nitems, unsigned char nsetsize);
|
|
|
|
// generate a random array of nitems float numbers with uniform distribution
|
|
// in the range [0 .. fmax)
|
|
void np_unifrnd(float* dst, int nitems, float fmax);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // _np_rnd_h_
|
|
|